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(No Model.) 4

A. D. STANSBURY.

SPRING MOTOR.

0 Patg nteq Apr. 29', 1884.

I ill 1 'v l/VVE/VTOR: M 1/ N. PETERS. Piwlobihagmphen Washington. m;

ren't ALFRED D. sTANsBuRY, or

SPRING- OOLLIERS, .WEST VIRGINIA.

MOTOR.

SPECIFICATION forming part of Letters Patent No. 297,725, dated April 29, 1884.

Application filed February 18, 1884. (No model.)

To all'whom it may concern.-

Beit known that I, ALFRED D. STANSBURY, a citizen of the United States, residing at Colliers, in the county of Brooke and State of West Virginia, have invented certain new and useful Improvements in Spring-l\1otors,-of which the following is a full, clear, and exact description. I i

This invention relates to springmotors, such as are used for operating churns, sewing machines, and other machinery where light power is required, and where the motive pow er is quickly stored and released or used at will, thereby avoiding the constant work or attention of an operator for the production of the required force. V

The invention consists in the peculiar combination and arrangement of the spring for storing the power, its connections, and the gearing through which the spring is wound, and through which the power is transmitted to the drivingshaft, substantially as hereinafter particularly set forth and claimed.

In the accompanying drawings, in the several figures of which like parts are indicated by similar letters of reference, Figure 1 is a sectional elevation in the plane of the line as m, Fig. 3, of the motor, showing the side to which the power-spring is adjacent. Fig. 2 isa side elevation of the motor on the same side of the frame, a portion of the frame being broken out in order to show a-pawl used to hold stationary the wheel which bears the spring. Fig. 3- is a top plan view of my motor. Fig.

.4 is a cross-section of the spring and wheel and drum to which the spring is connected, and Fig. 5 is a detail of the pendulum.

The letter A represents the frame, in which I mount in suitable bearings the shafts a b c and rock-shaft cZ. Upon one end of the shaft a is loosely mounted the gear-wheel B, having attached to it a yoke composed of the fiat bar 6 and two posts, f f. Between this yoke and the gear-wheel B is keyed or otherwise firmly attached to the shaft a drum, '9, of much smaller diameter than the wheel B, and to this drum is fastened one end of the fiat spring h by means of a dovetail slot, hf, and correspondinglyshaped wedge or key in the periphery of said drum,'the end of the spring being bent or turned down against one side of the dovetail slot, and the key inserted, th ereby retaining that endin place. The spring, after being wound several times around the drum, has its other end attached to one of the posts f of the yoke before described. At the other end of the shaft a is a fixed gear'wheel, 0. Upon the shaft b is mounted the small gearwheel 6, Fig. 3, which meshes with the large gear 0. Upon this shaft b is also mounted a band-pulley, D. A clutch-gear, k, is loosely mounted upon this shaft 1), which is provided at that point with a spline or feather, so that said clutch-gear can be moved into and out of engagement with the idler-pinion Z by means of the forkedlever k. The idler-pinion is arranged upon an arbor borne by the framing intermediate of the said C1LltCh-pil1l0ILk and gear B. The said clutch-pinion, however.

always rotates with the shaft b. The end of the arbor which bears the intermediate idlerpinion, Z, is squared or otherwise shaped to receive a key, m, with which to wind the spring through the gear B. The end of the shaft a may also be squared. or shapedin a similar way to receive a key to wind the spring. The shaft 0 is connected with the band-pulley D by means of a belt, a, running on a small pulley, 0, uponthe shaft 0. Ihis shaft is cranked at p, at which point itis connected by the link 0 to a beam or lever, q, supported on the rock- 'Shaft At the end of the rock-shaft d is attached a suitably-weighted pendulum, E, the arm 8 of which has one or more coils,s,to allow thearm to yield to and more gradually overcome the former, the pawl 15 must be disengaged from the gear B, the clutch is disengaged from pinion Z, and the pawl u may or may not be in engagement with the gear 0. If it is desired that the machine shall operate while winding the spring, the pawl a is removed from the gear 0. The wheel B, which is loose on the shaft or, is then turned by the pinion Z, thus winding the spring from its outer end at the post f around the arbor 9. After the spring is fully wound, thelpawl 13 may be used to lock the gear B, and pawl it released from gear 0, when the spring will expend its stored power through shaft (1., large gear (I, and small gear 17,- or the gear B may be released and the power expended through the intermediate gear, I, and clutch-gear 7;, which, rotating shaft 1) through the belt 12, rotates cranked shaft 0, thereby i mparting through link 1' a reciprocating motion to the beam or lever g, which transmits the required motion. The weighted pendulum or other eseapement is to release the power gradually, and the speed of this release may be increased or diminished by adj usting in the usual l way the weight at the higher or lower point 011 the pendulum. \Vhen it is desired to wind the spring from its inner or drum end, the shaft a is turned, in this instance, to the right by means of the keyon the squared end of said shaft, thereby turning the drum r to which the inner end of the spring is fast, thus winding the spring upon said drum. It will be observed that when winding the spring with this drum, motion is necessarily transmitted through the wheel 0 to shaft Z), and ultimately to lever After this last-described winding l the spring expends itself, as before described.

The intermediate gear, Z, may be dispensed with entirely, and-the clutchgear 70 be arranged for engagement with the gear 13 direct.

It will thus be seen that the spring may be wound around the drum from either end that is, beginning at its inner end on the drum 9, or at its outer end on the post], and without stoppin the machine. The winding from either end, of course, coils the spring around the drum.

\Vhat I claim is- 1. In a spring-motor, a shaft, a, and a gearwheel, B, loose on said shaft, provided with a yoke composed of the bar 0 and posts f, and a drum, 9, fast on said shaft. combined with a spring connected at one end with said drum, 1 and at the other with one of the posts f, substantially as and for the purpose described.

2. The shaft (1., wheel B, loose thereon, and

shaft, and the shaft 1), having gear iand cl utchgear k, combined with the pawl 1, to engage wheel B, all arranged to operate as set forth.

5. The shaft a, wheel B, loose thereon, and the spring connected to said shaft and wheel, substantially as described, the gear 0 on said shaft, and the shaft b, having gear 1', and cl utchgear 7;, combined with the pawls tand a, to engage wheels B and C, respectively, all arranged to operate as set forth.

6. The shaft (4, wheel B, loose thereon, and the spring connected to said shaft and wheel, substantially as described, the gear 0, on said shaft, and the shaft I), having gear a, clutchgear k, and band-pulley D, combined with the cranked shaft 0, the beam or lever 1 connected with said cranked shaft, and a belt, a, for transmitting motion from shaft 1) to shaft 0 to vibrate the lever, all arranged and operating as set forth.

7. In a spring-motor, the rock-shaft (1, eombined with a pendulum having one or more spring-coils in its arm, and an adjustable weight, substantially as and for the purpose described.

In testimony whereof I have hereunto set my hand this 1st day of February, A. D. 1884.

A. D. STANSBURY.

\iitnesses:

ALBERT HUNTER, E. N. Ronrxsox. 

